Patents by Inventor Kazunori Togashi
Kazunori Togashi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11968882Abstract: A high-molecular-weight compound having at least one substituted triarylamine structural unit represented by the following general formula (1), further including a structural unit having at least one aromatic hydrocarbon ring or a structural unit having a triarylamine skeleton in addition to the at least one substituted triarylamine structural unit, and having a weight average molecular weight of 10,000 or more and 1,000,000 or less in terms of polystyrene and no a crosslinker, wherein the high-molecular-weight compound is used in an organic EL device as a constituent material of at least one organic layer. A polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.Type: GrantFiled: May 29, 2020Date of Patent: April 23, 2024Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori Togashi, Mika Shinoda, Hideyoshi Kitahara, Shunji Mochizuki, Hiroki Hirai, Yuta Saegusa
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Publication number: 20230329080Abstract: It is an object of the present invention to provide a composition for light emitting diodes with which it is possible to obtain an organic EL element that includes an organic layer formed using a high molecular weight material and whose service life can be extended as compared with that of conventional organic EL elements. The present invention provides a composition for light emitting diodes containing a high molecular weight compound and a thermally crosslinkable low molecular weight compound, wherein the thermally crosslinkable low molecular weight compound includes a compound that has two or more thermally crosslinkable structures in a molecule. The thermally crosslinkable low molecular weight compound preferably includes a compound that contains two or more thermally crosslinkable structures selected from the group consisting of an acrylate structure, a methacrylate structure, and a maleimide structure in a molecule.Type: ApplicationFiled: September 17, 2021Publication date: October 12, 2023Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Yuta SAEGUSA, Mika SHINODA, Kazunori TOGASHI, Hiroki HIRAI
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Publication number: 20230100661Abstract: It is an object of the present invention to provide a high molecular weight compound that has excellent hole-injecting/transporting performance, is capable of blocking electrons, and is highly stable in a thin film state. It is another object of the invention to provide a light emitting diode with high luminous efficacy and a long lifespan, containing an organic layer (thin film) made of the above-described high molecular weight compound. The high molecular weight compound according to the present invention includes a repeating unit constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight in terms of polystyrene of 10,000 or more and less than 1,000,000.Type: ApplicationFiled: February 17, 2021Publication date: March 30, 2023Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Hideyoshi KITAHARA, Shunji MOCHIZUKI, Hiroki HIRAI, Mika SHINODA, Yuta SAEGUSA
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Publication number: 20220352469Abstract: It is an object of the present invention to provide a polymer organic EL element that has a low driving voltage, high light emission efficiency, and a long lifespan. The present invention provides an organic electroluminescence element having a pair of electrodes and at least one organic layer between the electrodes, wherein the organic layer is constituted by two or more high molecular weight compounds including at least high molecular weight compounds ? and ?, and the high molecular weight compound ? has a substituted triarylamine structural unit represented by a general formula (1) below and has a weight average molecular weight of 10,000 or more and less than 1,000,000 in terms of polystyrene. For the symbols in the formula, see the Description.Type: ApplicationFiled: October 7, 2020Publication date: November 3, 2022Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Mika SHINODA, Junichi IZUMIDA, Shunji MOCHIZUKI, Hiroki HIRAI, Yuta SAEGUSA
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Publication number: 20220255008Abstract: [Object] To provide a polymer material having excellent hole injection/transport performance, electron blocking capability, high heat resistance, and high stability in a thin-film state for use in a polymer organic EL device, and provide an organic EL device having a low drive voltage, high light emission efficiency, and a long lifetime using this polymer material.Type: ApplicationFiled: May 29, 2020Publication date: August 11, 2022Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Mika SHINODA, Hideyoshi KITAHARA, Shunji MOCHIZUKI, Hiroki HIRAI, Yuta SAEGUSA
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Patent number: 11375075Abstract: In a case where a temperature detected by a detector is greater than a threshold, one or more processors controls a light source not to emit light and stops conveyance of a document by a conveyance unit. In a case where a predetermined amount of time has elapsed from when the one or more processors controls the light source not to emit the light, the one or more processors controls the light source to emit the light and starts conveyance of the document by the conveyance unit, regardless of a detection result of the detector.Type: GrantFiled: November 6, 2020Date of Patent: June 28, 2022Assignee: CANON KABUSHIKI KAISHAInventor: Kazunori Togashi
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Publication number: 20220177454Abstract: Provided are: a trisubstituted benzene compound represented by general formulae (1) and (2); and an organic electroluminescence (EL) element having a pair of electrodes and at least a pair of organic layers interposed therebetween, the organic EL element being characterized in that said compound is used as a constituent material for at least one organic layer.Type: ApplicationFiled: March 5, 2020Publication date: June 9, 2022Applicants: HODOGAYA CHEMICAL CO., LTD., SHINSHU UNIVERSITYInventors: Kazunori TOGASHI, Hideyoshi KITAHARA, Musubu ICHIKAWA
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Patent number: 11251373Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group.Type: GrantFiled: November 29, 2017Date of Patent: February 15, 2022Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori Togashi, Hideyoshi Kitahara, Mari Kaneko, Junichi Izumida
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Patent number: 11196004Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, where Ar1 and Ar2 are a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R1 and R2 represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, or a cycloalkyloxy group, X, Y and Z are, on the condition that at least one of them is an aryl group or a heteroaryl group, an aryl group, a heteroaryl group, or a group similar to the groups represented by R1 and R2 above.Type: GrantFiled: March 9, 2018Date of Patent: December 7, 2021Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori Togashi, Hideyoshi Kitahara, Junichi Izumida, Mari Kaneko
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Patent number: 11102368Abstract: An apparatus includes a forming unit, a receiving unit configured to receive an instruction, a reading unit configured to read an image based on the instruction, a memory configured to store a plurality of pieces of pixel data, a first output unit configured to output the plurality of pieces of pixel data at an output cycle, a data bus configured to transfer the pixel data, and a controller configured to operate a first process and a second process. The forming unit forms an image based on the plurality of pieces of pixel data transferred via the data bus. In a case where the receiving unit receives the instruction, the controller sets the output cycle as a first cycle if the controller is not operating the second process, or sets the output cycle as a second cycle longer than the first cycle if the controller is operating the second process.Type: GrantFiled: November 11, 2020Date of Patent: August 24, 2021Assignee: CANON KABUSHIKI KAISHAInventor: Kazunori Togashi
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Publication number: 20210253785Abstract: It is an object of the present invention to provide a high molecular weight compound that has excellent hole injection and transport performance, is capable of blocking electrons, and is highly stable as a thin film. It is another object of the present invention to provide an organic EL element that includes an organic layer (thin film) made of the above-described high molecular weight compound, wherein the organic EL element has high light emission efficiency and a long lifespan. The high molecular weight compound according to the present invention includes a repeating unit represented by a general formula (3), that is constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight of 10,000 or more and less than 1,000,000 on a polystyrene basis.Type: ApplicationFiled: July 1, 2019Publication date: August 19, 2021Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Hideyoshi KITAHARA, Junichi IZUMIDA, Hiroki HIRAI, Mika SHINODA
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Publication number: 20210160395Abstract: An apparatus includes a forming unit, a receiving unit configured to receive an instruction, a reading unit configured to read an image based on the instruction, a memory configured to store a plurality of pieces of pixel data, a first output unit configured to output the plurality of pieces of pixel data at an output cycle, a data bus configured to transfer the pixel data, and a controller configured to operate a first process and a second process. The forming unit forms an image based on the plurality of pieces of pixel data transferred via the data bus. In a case where the receiving unit receives the instruction, the controller sets the output cycle as a first cycle if the controller is not operating the second process, or sets the output cycle as a second cycle longer than the first cycle if the controller is operating the second process.Type: ApplicationFiled: November 11, 2020Publication date: May 27, 2021Inventor: Kazunori Togashi
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Publication number: 20210144270Abstract: In a case where a temperature detected by a detector is greater than a threshold, one or more processors controls a light source not to emit light and stops conveyance of a document by a conveyance unit. In a case where a predetermined amount of time has elapsed from when the one or more processors controls the light source not to emit the light, the one or more processors controls the light source to emit the light and starts conveyance of the document by the conveyance unit, regardless of a detection result of the detector.Type: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Inventor: Kazunori Togashi
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Patent number: 10797242Abstract: An organic compound having an excellent electron injection and transport performance is provided as a material for a low-power-consumption organic electroluminescent device. A low-power-consumption organic electroluminescent device is also provided by using the compound. The compound is a compound of general formula (1) or (2) having a substituted bipyridyl and triphenylene ring structure. The organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, and uses the compound as constituent material of at least one of the organic layers.Type: GrantFiled: May 24, 2017Date of Patent: October 6, 2020Assignees: Hodogaya Chemical Co., Ltd., Kyushu University, National University CorporationInventors: Chihaya Adachi, Kazunori Togashi, Norimasa Yokoyama, Shintaro Nomura
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Patent number: 10593884Abstract: In the organic electroluminescent device having at least an anode, a hole injection layer, a first hole injection layer, a second hole injection layer, a light emitting layer, an electron transport layer and a cathode in this order, the hole injection layer includes an arylamine compound of the following general formula (1) and an electron acceptor. In the formula, Ar1 to Ar4 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group.Type: GrantFiled: January 4, 2016Date of Patent: March 17, 2020Assignee: Hodogaya Chemical Co., Ltd.Inventors: Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Naoaki Kabasawa, Daizou Kanda, Kazunori Togashi, Shunji Mochizuki
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Publication number: 20190378989Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by a general formula (1) below, where Ar1 and Ar2 are a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, R1 and R2 represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group, a cycloalkyl group, an alkenyl group, an alkyloxy group, or a cycloalkyloxy group, X, Y and Z are, on the condition that at least one of them is an aryl group or a heteroaryl group, an aryl group, a heteroaryl group, or a group similar to the groups represented by R1 and R2 above.Type: ApplicationFiled: March 9, 2018Publication date: December 12, 2019Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Hideyoshi KITAHARA, Junichi IZUMIDA, Mari KANEKO
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Publication number: 20190326515Abstract: A high molecular weight compound according to the present invention includes a substituted triarylamine structural unit represented by the following general formula (1), where AR1, AR2, and L each independently represent a divalent aromatic hydrocarbon group or a divalent aromatic heterocyclic group, n is an integer of 1 to 3, Ar1 and Ar2 each independently represent an aryl group or a heteroaryl group, and R1, R2, and R3 each independently represent a hydrogen atom, a heavy hydrogen atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 10 carbon atoms, a cycloalkyloxy group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an aryl group, an aryloxy group, or a heteroaryl group.Type: ApplicationFiled: November 29, 2017Publication date: October 24, 2019Applicant: HODOGAYA CHEMICAL CO., LTD.Inventors: Kazunori TOGASHI, Hideyoshi KITAHARA, Mari KANEKO, Junichi IZUMIDA
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Patent number: 10375270Abstract: Provided is a signal processing apparatus that enables an image reading apparatus to perform higher speed processing of reading a document image. A signal processing unit is configured to convert six analog image signals obtained from a line sensor into six first signals, each of which is a 10-bit digital image signal, respectively, and to write the six first signals into a RAM at a first speed that is the same as a frequency of the analog image signals. The signal processing unit is configured to cause a serialization unit to read out from the RAM the six first signals as four second signals, each of which is a 10-bit digital image signal, at a second speed higher than the first speed, respectively, and to serialize the four second signals to generate six 7-bit serial signals.Type: GrantFiled: June 26, 2018Date of Patent: August 6, 2019Assignee: Canon Kabushiki KaishaInventor: Kazunori Togashi
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Patent number: 10276800Abstract: The present invention provides an organic EL device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in order of description. The second hole transport layer includes an arylamine compound having a specific structure, and the electron transport layer includes a pyrimidine derivative having a specific structure. The organic EL device of the present invention has a high efficiency, a low driving voltage, and a longer life.Type: GrantFiled: November 12, 2015Date of Patent: April 30, 2019Assignee: HODOGAYA CHEMICAL CO., LTD.Inventors: Shuichi Hayashi, Daizo Kanda, Kazunori Togashi
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Publication number: 20180309903Abstract: Provided is a signal processing apparatus that enables an image reading apparatus to perform higher speed processing of reading a document image. A signal processing unit is configured to convert six analog image signals obtained from a line sensor into six first signals, each of which is a 10-bit digital image signal, respectively, and to write the six first signals into a RAM at a first speed that is the same as a frequency of the analog image signals. The signal processing unit is configured to cause a serialization unit to read out from the RAM the six first signals as four second signals, each of which is a 10-bit digital image signal, at a second speed higher than the first speed, respectively, and to serialize the four second signals to generate six 7-bit serial signals.Type: ApplicationFiled: June 26, 2018Publication date: October 25, 2018Inventor: Kazunori Togashi